Answer: option B) A gene can take different forms called alleles.
Explanation:
An allele is one of the two or more different forms of the same gene.
For example, a trait such as seed shape is represented expressed a gene, but with allele of "RR" (round seeds) and "rr"(wrinkled seeds) observed physically by the farmers.
Thus, the correct answer is that a gene can take different forms called alleles.
<span>parent cell is diploid and sex cell is haploid</span>
Ans.
Transcription and translation are two important steps for protein synthesis. Transcription involves formation of mRNA from parent DNA that has codes for protein synthesis, while translation involves decoding of genetic codes present in mRNA to make a specific polypeptide chain.
Thus, 'if transcription does not occur, translation would not take place as there is no mRNA that can code for a polypeptide chain.'
The correct answer is option C, that is, both the organisms generate haploid spores and exhibit diploid and haploid stages.
The sporophyte (of the haploid stage) in pteridophytes produce spores. The diploid stage in pteridophytes may take place when two of the spores combines and give rise to a prothallus, that is, the diploid stage of the pteridophytes.
In fungi, the production of spores takes place by sporangiophores (haploid stage). At a certain stage, two horizontal hyphae among the two species of fungi, may amalgamate at the tips and produce a zygote (diploid) via plasmogamy and karyogamy.
